<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>1</title>
  <link rel="stylesheet" href="./index1.css">
</head>

<body>
  <div class="demo_box">
    <div id="ab"></div>
    <div class="bom">
      <div data-effect="copy" draggable="true" class="subjects color1"></div>
      <div data-effect="copy" draggable="true" class="subjects color2"></div>
      <div data-effect="copy" draggable="true" class="subjects color3"></div>
      <div data-effect="copy" draggable="true" class="subjects color4"></div>
      <div data-effect="copy" draggable="true" class="subjects color5"></div>
    <div class="r" data-drop="move">删除</div>
    </div>
  </div>
  <button>+</button>
  <script src="./draw.js"></script>

</body>

</html>